nanya dong gan. ane kan sblm nya pake S8+ simcard dual sim + sdcard bs berjalan lancar. nah ini skrg punya n9, ketika ane pasang dual sim + sdcard ada pesan yg bwt gk bs ngapain2 layar nya : 'Sim card tray slot problem....There seems to be something in your SIM card tray slot that doesn't belong